...
It's not that Yves King didn't have time to take the shot. Even if Richard was quick, King could have shot him down with a precision. But the problem was, the X2 strapped to him. King was not exactly familiar with X2, but he had heard about the ongoing research on developing handheld high-explosive bombs, funded by various national organizations.
Dahlia Sanders had previously explained to him that the coin-sized X2 packed as much destructive force as a rocket-propelled grenade's blast wave.
On the topic of the area bombs, King was sure that the terrorists were bluffing. Otherwise, they wouldn't have been so lacking in confidence. But King wasn't entirely sure about X2 being a bluff.
